# Atmos: Golden Hour Forecaster — Photography. No subscriptions. > Golden hour and blue hour quality forecaster for photographers. (iPhone/iPad app by Eugene Mim.) - Source: https://appshunter.io/ios/app/atmos-golden-hour-forecaster/id6764178387 (this page in markdown: same URL + `.md`) - Developer: [Eugene Mim](https://appshunter.io/developer/1879319505) - Category: Photo & Video, Weather - Price: $4.99 - Rating: 5.00/5 from 5 App Store ratings - Age rating: 4+ - Requires: iOS 18.0 · 4 MB - Languages: American English - Released: 2026-05-04 - Data updated: 2026-08-24 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/atmos-golden-hour-forecaster/id6764178387/reviews.md ## What is Atmos? Atmos tells you if golden hour is worth going outside - before you leave. Most weather apps say "partly cloudy." Atmos tells you whether that cloud is high-altitude cirrus (ideal for projecting golden color) or low stratus (will block the sun entirely). That distinction is the difference between a shot you'll remember and a wasted alarm. THE SCORE Every golden hour and blue hour gets a 0-100 quality score built from 7 atmospheric factors: high cloud (cirrus), low cloud blockage, mid-level texture, pressure trend, color vividness, visibility, and precipitation. One number. Four plain-language verdicts: Exceptional, Good, Fair, or Skip It. FOUR SHOOT WINDOWS PER DAY Atmos tracks golden hour and blue hour for both morning and evening sessions - four windows every day, five days out. Blue hour (the cobalt transition just before sunrise and after sunset) gets its own dedicated quality summary. REAL-TIME COUNTDOWN Updates every 30 seconds. Shows exactly how long until your next window opens - or how many minutes you have left if you're already in it. A pulsing LIVE indicator appears the moment conditions are active. 5-DAY FORECAST See morning and evening scores for the next five days at a glance. A Best PM badge marks the highest-scoring evening window of the week. Tap any day to expand condition details, fog probability, temperature range, and full factor breakdowns. PUSH NOTIFICATIONS Set alerts before each shoot window. Choose how many minutes early, which days of the week, and a minimum quality threshold - so Atmos only notifies you when it's actually worth going outside. Note: the forecast changes often, check the forecast the same day for the best accuracy. FOG PREDICTION An early-warning system for morning fog. Checks humidity, wind speed, dew point, and overnight sky clarity to produce a fog probability - and sends an alert the night before if conditions look favorable. HOME SCREEN WIDGETS Three sizes, updating every 15 minutes. Small - score + countdown Medium - score + today's full window timeline Large - score + timeline + 5-day bar chart SCORE BREAKDOWN Tap any score to see exactly which factors helped or hurt, with photographer-friendly explanations like "26% cirrus - ideal projection screen for golden light." SHAREABLE CARDS Render a 9:16 Story card showing your score, conditions, and window timeline - ready for Instagram or TikTok. ON-DEVICE SOLAR MATH All golden hour, blue hour, sunrise, and sunset times are computed locally using Jean Meeus astronomical algorithms. No API dependency - timing works even without a network connection. $4.99 one-time purchase. No subscription. No ads. No upsells. All future updates and every feature included in price. No accounts, all data stored locally. Weather data powered by Apple WeatherKit. Solar calculations by Jean Meeus algorithms. Requires iOS 17+, iPhone. ## Key features - Golden hour and blue hour quality scoring - Real-time countdowns - Push notifications for shoot windows - 5-day forecast with detailed breakdowns - Fog prediction alerts - Shareable social media cards - On-device solar calculations ## Frequently asked questions about Atmos ### What is Atmos? Atmos is a photography app that predicts the quality of golden hour and blue hour. It provides a score from 0-100 based on atmospheric factors and offers plain-language verdicts like 'Exceptional', 'Good', 'Fair', or 'Skip It'. ### How much does Atmos cost? Atmos is a one-time purchase of $4.99. There are no subscriptions, ads, or upsells, and all future updates are included in the price. ### Does Atmos have ads? No, Atmos is completely ad-free. The app explicitly states 'No ads' and is a one-time purchase with all features included. ### What devices does Atmos support? Atmos currently supports iPhones and requires iOS 17 or later. It is not available on iPads or other devices at this time. ### How often is the Atmos forecast updated? The real-time countdown updates every 30 seconds, and home screen widgets update every 15 minutes. The forecast itself changes often, and users are advised to check the forecast on the same day for the best accuracy. ### Can I get alerts for good shooting conditions with Atmos? Yes, Atmos offers push notifications that can be set before each shoot window. You can customize the early alert time, days of the week, and a minimum quality threshold. ### What makes Atmos's forecasts accurate? Atmos uses 7 atmospheric factors including cloud type and coverage, pressure trend, color vividness, visibility, and precipitation for its scoring. Solar times are computed locally using Jean Meeus astronomical algorithms, ensuring accuracy without API dependency. ### Is Atmos suitable for young children? Atmos has an age rating of 4+. The app's content is focused on weather forecasting for photography and does not contain any mature themes. ## Version history (last 2 releases) ### 1.13 — 2026-06-15 - Fixed the 12/24-hour time format setting — changing it in Settings now updates times everywhere in the app, including shoot windows, the event list, sunrise/sunset details, and share cards. - 24-hour mode now shows a leading zero (e.g. 06:30, 18:30) for a cleaner, standard look. - The home screen widget now updates right away when you switch time formats. ### 1.1 — 2026-05-04 No release notes. ## More apps by Eugene Mim - [Hive: Family Planner](https://appshunter.io/ios/app/hive-family-planner/id6759532187) - [Velo 5k](https://appshunter.io/ios/app/velo-5k/id6761034437) - [Frost Watch](https://appshunter.io/ios/app/frost-watch/id6761346646) All apps by Eugene Mim: https://appshunter.io/developer/1879319505 ## Related topics [partly cloudy](https://appshunter.io/ios/topics/partly-cloudy) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*